title: Fabrication of highly nonlinear germano-silicate glass optical fiber incorporated with PbTe semiconductor quantum dots using atomization doping process and its optical nonlinearity.
abstract: Germano-silicate glass optical fiber incorporated with PbTe semiconductor quantum dots (SQDs) in the core was fabricated by using the atomization process in modified chemical vapor deposition (MCVD) process. The absorption bands attributed to PbTe semiconductor quantum dots in the fiber core were found to appear at around 687 nm and 1055 nm. The nonlinear refractive index measured by the long-period fiber grating (LPG) pair method upon pumping with laser diode at 976.4 nm was estimated to be ~1.5 × 10(-16) m2/W.
authors.affiliation: Graduate Program of Photonics and Applied Physics/Department of Information and Communications, Gwangju Institute of Science and Technology, 1 Oryong-dong, Buk-gu, Gwangju 500-712, South Korea.
authors.forename: Seongmin
authors.initials: S
authors.lastname: Ju
authors.forename: Pramod R
authors.initials: PR
authors.lastname: Watekar
authors.forename: Won-Taek
authors.initials: WT
authors.lastname: Han
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005857:Germanium / Q000737:chemistry*; D005898:Glass; D007854:Lead / Q000737:chemistry*; D017711:Nonlinear Dynamics; D045663:Quantum Dots; D012666:Semiconductors; D017640:Silicates / Q000737:chemistry*; D013691:Tellurium / Q000737:chemistry*
chemical_list: D017640:Silicates; D005857:Germanium; D007854:Lead; D013691:Tellurium